repocompare/repo_compare_html.sh

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#!/bin/bash
# Script takes 2 arguments: SOURCEREPO and TARGETREPO (ex: ./repo_compare_html.sh RHEL8_BaseOS Rocky8_BaseOS )
# The arguments must be named dnf/yum repos on the system
#
# We will loop through the RPM names from SOURCEREPO, and attempt to find name/version/release matches in TARGETREPO
# An HTML table page will be output showing the differences
#
# -Skip Grube, 2021-06-29
REPO1="$1"
REPO2="$2"
pkglist1=`dnf repoquery --latest-limit 1 --repo ${REPO1} --queryformat "%{name} %{version} %{release}" | grep -vi " subscription "` #| tr '\n' ','`
pkglist2=`dnf repoquery --latest-limit 1 --repo ${REPO2} --queryformat "%{name} %{version} %{release}" | grep -vi " subscription "`
# Strip ending moduleXYZ and .el8* information away from the release info, as
# They may not match (or will never match in the module's case)
pkglist1=`echo "${pkglist1}" | sed -e 's/\.module.*$/\.module/g' | sed -e 's/\.el.*$//g'`
pkglist2=`echo "${pkglist2}" | sed -e 's/\.module.*$/\.module/g' | sed -e 's/\.el.*$//g'`
# Turn the first pkg list into a comma-separated list (instead of newline-separated)
# (makes it easier to use IFS=',' in all of our for loops)
pkglist1=`echo "${pkglist1}" | tr '\n' ','`
#echo "$pkglist1" > debug1.txt
#echo "$pkglist2" > debug2.txt
# HTML style header for table:
echo "<html><h3>Repo Version Differences for: ${REPO1} vs. ${REPO2}</h3>"
echo '
<style>
table {
border-collapse: collapse;
width: 60%;
}
th, td {
text-align: left;
padding: 8px;
}
tr:nth-child(even) {background-color: #d4d4d4;}
</style>
<div style="overflow-x:auto;">
'
echo "
<i>Generated by Repo Compare Script at: `date +'%Y-%m-%d %H:%M:%S'` </i>
<br />
<table>
<tr><th>${REPO1} Version</th> <th>${REPO2} Version</th></tr>
"
IFS=','
# Main loop to check all packages from our "source" repo
for pkg in `echo "${pkglist1}"`; do
# Extract name/version/tag info from package (filtering out modular + el8* info from tag)
_name=`echo "$pkg" | awk '{print $1}'`
_version=`echo "$pkg" | awk '{print $2}'`
_tag=`echo "$pkg" | awk '{print $3}'` # | sed -e 's/\.module.*$/\.module/g' | sed -e 's/\.el.*$//g'`
# every package match is false by default, until we match it
isPkgMatched=0
# Find any packages in the target repo with the same name as the one we're interested in from the source repo:
# (easy to match the exact name if we include a space separator in our grep)
# (We turn it into a comma separated list as well so we can do another for loop against the result set)
pkgmatches=`echo "${pkglist2}" | grep "^${_name} "`
# If there are no matches, we output a DOES NOT EXIST and don't bother with searching the results
if [[ -z "${pkgmatches}" ]]; then
echo "<tr> <td>${_name}-${_version}-${_tag}</td> <td>(DOES NOT EXIST)</td> </tr>"
continue
fi
# Loop through each result (name matches) and look for an exact version match:
for match in `echo "${pkgmatches}"`; do
_name2=`echo "$match" | awk '{print $1}'`
_version2=`echo "$match" | awk '{print $2}'`
_tag2=`echo "$match" | awk '{print $3}'` # | tr -d ',' | sed -e 's/\.module.*$/\.module/g' | sed -e 's/\.el.*$//g'`
#echo "DEBUG :: _tag2 == $_tag2"
# If we find a match, then exit this loop and set the flag to found:
if [ "${_name}-${_version}-${_tag}" == "${_name2}-${_version2}-${_tag2}" ]; then
isPkgMatched=1
break
fi
done
# Get pkgmatches into name-version-release format:
pkgmatches=`echo "${pkgmatches}" | sed 's/ /\-/g' | sed 's/,$//'`
# If package is not matched, then we need to output an HTML row:
if [ "$isPkgMatched" == "0" ]; then
echo "<tr> <td>${_name}-${_version}-${_tag}</td> <td>${pkgmatches}</td> </tr>"
fi
done
echo "</table></html>"